This is an SL8 replacement lower which is designed to accept an AR style bolt on grip and the Magpul PRS2 HK91 adjustable sniper style stock. This set up also includes a dual sling pin mount. This is designed to accept AR fire controls, AR selectors, Detent, spring and Fire controls are required. Some AR fire controls may require fitting. This comes complete with the stock, lower, grip and sling pin, you must reuse your SL8 bolt hold open lever and buffer. No modification to the rifle required. . Set up is only available in Black. WARNING, DO NOT DRY FIRE OUTSIDE OF THE SL8, DAMAGE WILL OCCUR AND IS NOT COVERED BY WARRANTY !